39. If all the vegetation on a pond died then the organisms and fishes that lives on that pond will no longer have anything to eat and anything to live, thus the probability is that they will also die.
Let’s put ourselves in the shoes of those fishes. If all the plants and vegetation died on that pond, it’s like our home and food were taken from us. Then there’s nothing left. How can we survive without having food?
I think it’s secondary mutations at least and it must be
The male child is having Kleinfelter's syndrome.
Explanation:
In the Klinefelter's syndrome, the number of chromosomes is 47 ie 2X Y
It is given that he is chromatin-positive male i.e colour blind. It can be assumed that he received two X chromosome from his mother in which one turned in to barr body. Colour blindness is an X-linked recessive trait.
Both the X chromosomes have an allele for colour blindness and nondisjunction has taken place in mother's gametes, making 2X chromosome.
It can be concluded that the chromosome having colour bling gene got expressed whereas the other chromosome became barr body.
Answer:
The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.
Explanation:
